H.J. Wijsman & Zonen Preserved Dutch Salted Butter in 7.05oz (200g) tin. Wysman butter is preserved through the addition of extra salt, it has a rich, cheeselike taste, great for all your baking needs. PH.J. Wijsman & Zonen is the worlds oldest producer of canned butter. Sealed airtight for maximum freshness, their canned creamery butter delivers convenience in the form of extended shelf life and easy distribution without the necessity of refrigeration.